Mold in the Workplace

Mold can grow on nearly any surface and can cause adverse health effects, such as immediate or delayed allergic reactions. In some individuals, molds can cause asthma attacks, as well as eye, skin, and nose irritation. The full extent of the harmful health effects from mold exposure is unknown and the research is ongoing.

To prevent mold in the workplace, moisture control is key. Use these tips to help prevent mold in your work environment:

• Clean and dry any wet spots and repair leaks in the workplace quickly.
• Find the source of condensation, wet spots, and leaks, and take action to prevent them from occurring in the future.

• Prevent moisture condensation by increasing surface temperature or reducing the humidity in the air.
• Maintain HVAC systems properly. Change the filters, keep drip pans clean, and ensure the system is unobstructed and flows properly.
• Keep indoor relative humidity below 70%.
• Vent appliances that generate moisture, as well as kitchens and bathrooms.
• Ensure there is adequate drainage around buildings and that the ground slopes away from the building foundation.

For more information on mold prevention, see OSHA’s Preventing Mold-Related Problems in the Indoor Workplace publication or the CDC Mold page.